公开(公告)号：US20240134187A1

公开(公告)日：2024-04-25

申请号：US18538749

申请日：2023-12-13

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA

IPC: G02B27/00 ,  B29D11/00 ,  G02B5/30 ,  G02B23/14 ,  G06F1/16

CPC classification number: G02B27/0018 ,  B29D11/00644 ,  G02B5/3016 ,  G02B23/14 ,  G06F1/163

Abstract: A method of producing an absorbing polarizer which has a plurality of regions where directions of absorption axes are different from each other and has a curved surface portion. The method includes a step of forming a layer of a composition for forming a photo-alignment film that contains a photo-alignment agent on a surface of a resin base material, a step of forming the alignment film by irradiating the layer with ultraviolet rays of linearly polarized light via a lens, and aligning the photo-alignment agent, and a step of coating a surface of an alignment film with a composition containing a liquid crystal compound and a dichroic substance. The alignment film has a curved surface portion and a plurality of regions where directions of an alignment regulating force are different from each other.

公开(公告)号：US20230035147A1

公开(公告)日：2023-02-02

申请号：US17846897

申请日：2022-06-22

Applicant: FUJIFILM Corporation

Inventor： Wataru HOSHINO ,  Naoyoshi YAMADA ,  Shinichi YOSHINARI

IPC: G02B5/30 ,  C09K19/56 ,  C09K19/60 ,  C09K19/38

Abstract: Provided is an optical laminate used for a viewing angle control system, and an image display device, including a light absorption anisotropic layer formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, a first adjacent layer in contact with one surface of the light absorption anisotropic layer, and a second adjacent layer in contact with a surface of the light absorption anisotropic layer opposite to the one surface, in which a content of the dichroic substance is 7.0% by mass or greater, an angle θs between a transmittance central axis of the light absorption anisotropic layer and a surface of the light absorption anisotropic layer in a normal direction is in a range of 5° to 60°, and both refractive indices n1 and n2 of the first and second adjacent layers, respectively, are in a range of 1.46 to 1.72.

公开(公告)号：US20220283351A1

公开(公告)日：2022-09-08

申请号：US17752409

申请日：2022-05-24

Applicant: FUJIFILM Corporation

Inventor： Naoya SHIBATA ,  Yasukazu KUWAYAMA ,  Naoki KOITO ,  Yumi KATO ,  Fumitake MITOBE ,  Naoyoshi YAMADA

IPC: G02B5/30 ,  C09J133/10

Abstract: An object of the present invention is to provide a laminate including a light absorption anisotropic layer, in which a decrease in a degree of polarization is suppressed even in a case where the laminate is simultaneously stretched in a plurality of directions, and an optical device and a display device, each using the laminate. The laminate of an embodiment of the present invention is a laminate having at least a resin substrate and a light absorption anisotropic layer, in which a tan δ peak temperature of the resin substrate is 170° C. or lower, the light absorption anisotropic layer includes a liquid crystalline compound and a dichroic substance, and an alignment degree of the dichroic substance is 0.95 or more.

公开(公告)号：US20220281191A1

公开(公告)日：2022-09-08

申请号：US17752415

申请日：2022-05-24

Applicant: FUJIFILM Corporation

Inventor： Takashi YONEMOTO ,  Naoki KOITO ,  Yumi KATO ,  Naoyoshi YAMADA

IPC: B29D11/00 ,  C09K19/56 ,  C09K19/38 ,  C09K19/60 ,  G02B5/30

Abstract: Provided is a method for producing a light absorption anisotropic film having a three-dimensional shape and having excellent alignment, which is capable of manufacturing a light absorption anisotropic film having a high degree of polarization even where a three-dimensional shape is provided by heating molding. The method includes a step of producing an intermediate laminate having an optical coating film formed using a liquid crystal composition containing a liquid crystalline compound and a dichroic substance, and an alignment film; a step of heating the intermediate laminate produced by the film forming step to impart a three-dimensional shape; an aligning step of aligning a liquid crystalline component included in the optical coating film in the intermediate laminate imparted with the three-dimensional shape by the heating molding step to produce a light absorption anisotropic film; and a step of curing the light absorption anisotropic film produced by the aligning step.

公开(公告)号：US20210191195A1

公开(公告)日：2021-06-24

申请号：US17190112

申请日：2021-03-02

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA ,  Tatsuya IWASAKI ,  Katsufumi OHMURO

IPC: G02F1/1335

Abstract: The present invention provides a liquid crystal display device which suppresses a color change of light leak depending on a direction in the visual recognition from an oblique direction during black display, and has high display quality. The liquid crystal display device includes, in order, at least: a first polarizer; an optically anisotropic layer a liquid crystal cell; and a second polarizer, the liquid crystal cell has pixels with a screen resolution of 250 ppi or more, the pixels each have at least blue, green, and red subpixels, the subpixel has a chevron structure in which an angle formed between at least one side and an absorption axis of the first polarizer or an absorption axis of the second polarizer is larger than 0° and not larger than 5°, and a depolarization degree of the liquid crystal cell in a visible light region satisfies a predetermined requirement.

公开(公告)号：US20200150334A1

公开(公告)日：2020-05-14

申请号：US16744349

申请日：2020-01-16

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA ,  Yukito SAITOH ,  Hiroshi SATO

IPC: F21V8/00 ,  G02B5/30

Abstract: Provided is an image display device including an image display unit which includes a display area in which a plurality of pixels is arranged, and a non-display area provided at a periphery of the display area, a light guide unit which has one surface disposed so as to face at least an edge of the display area of the image display unit on a viewing side and another surface that is disposed at an opposite side of the light guide from the one surface and is provided at a position shifted further toward the non-display area than the one surface, and a diffraction element which is disposed between the image display unit and the light guide unit and diffracts light from the display area toward the side of the non-display area adjacent to the edge.

公开(公告)号：US20200050009A1

公开(公告)日：2020-02-13

申请号：US16654959

申请日：2019-10-16

Applicant: FUJIFILM Corporation

Inventor： Yukito SAITOH ,  Daisuke KASHIWAGI ,  Hirofumi TOYAMA ,  Naoyoshi YAMADA ,  Takashi YONEMOTO ,  Eiichiro AMINAKA

IPC: G02B27/22 ,  G02B5/30 ,  C09K19/36

Abstract: An optical film includes a cholesteric liquid crystal layer formed in a stripe-shaped pattern in which an optically anisotropic region having optical anisotropy and an optically isotropic region having optical isotropy are alternately disposed, a helical axis of a cholesteric liquid crystal in the optically anisotropic region is oriented in one axial direction tin a plane of the optical film, and the helical axis is oriented in a normal direction t of a boundary surface between the optically anisotropic region and the optically isotropic region.

公开(公告)号：US20180072942A1

公开(公告)日：2018-03-15

申请号：US15817875

申请日：2017-11-20

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA

IPC: C09K11/02 ,  C09K11/88 ,  C09D133/10 ,  C09D163/00 ,  C09D5/22 ,  C09D5/24 ,  G02F1/1335 ,  F21V8/00

Abstract: A composition and a wavelength converter are provided. The composition includes at least: quantum dots having an emission peak wavelength in a visible light region; and quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region. The wavelength converter includes, in a polymer: quantum dots having an emission peak wavelength in a visible light region; quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region; and an oxide formed by oxidizing at least a part of the quantum dots having an emission peak wavelength in an ultraviolet region or in a near-ultraviolet region.

公开(公告)号：US20160306230A1

公开(公告)日：2016-10-20

申请号：US15191978

申请日：2016-06-24

Applicant: FUJIFILM Corporation

Inventor： Naoyoshi YAMADA ,  Ryuta TAKEGAMI

IPC: G02F1/13363 ,  H01L27/32 ,  H01L51/52 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133634 ,  G02B5/3083 ,  G02B2207/121 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/133603 ,  G02F2001/133541 ,  G02F2001/133562 ,  G02F2001/133614 ,  G02F2001/133635 ,  G02F2413/01 ,  G02F2413/02 ,  G02F2413/08 ,  G06F3/0412 ,  H01L27/323 ,  H01L51/524 ,  H01L51/5281 ,  H01L51/5284 ,  H01L2251/558

Abstract: An image display device including a polarizer and a first optical film, in which the first optical film is arranged on a visible side from the polarizer, the first optical film has Re(589) of 3,000 nm to 30,000 nm and Rth(589) of −30,000 nm to −3,000 nm, an angle θ1 between a slow axis of the first optical film and an absorption axis of the polarizer is 45°±30°, and the image display device is a liquid crystal display device including a blue or ultraviolet LED, a fluorescent body, and a liquid crystal cell, or an organic EL display device, is able to suppress the occurrence of rainbow unevenness without darkening brightness at the time of being observed by mounting polarized sunglasses, and is able to suppress the occurrence of the rainbow unevenness without darkening the brightness at the time of being observed by mounting the polarized sunglasses even in a case where a film which has great optical anisotropy and is stretched in at least a monoaxial direction is further provided on the visible side of the image display device.

Abstract translation: 一种包括偏振器和第一光学膜的图像显示装置，其中第一光学膜被布置在来自偏振器的可见侧上，第一光学膜具有3,000nm至30,000nm的Re（589）和第三光学膜的Rth（589） -30,000nm至-3,000nm，第一光学膜的慢轴与偏振片的吸收轴之间的角度θ1为45°±30°，图像显示装置为包括蓝色或紫外线的液晶显示装置 LED，荧光体和液晶单元或有机EL显示装置能够通过安装偏振太阳眼镜来抑制彩虹不均匀的发生而不会使亮度变暗，并且能够抑制 即使在具有大的光学各向异性的膜并且至少沿单轴方向拉伸的情况下，通过安装偏光太阳镜而观察到的亮度也不会使色彩不均匀性进一步提供 在图像显示装置的可见侧上。

公开(公告)号：US20160048057A1

公开(公告)日：2016-02-18

申请号：US14924879

申请日：2015-10-28

Applicant: FUJIFILM Corporation

Inventor： Megumi SEKIGUCHI ,  Hiromichi FURUKAWA ,  Naoyoshi YAMADA

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02F1/133528 ,  G02B5/305 ,  G02F1/133602 ,  G02F2001/133302 ,  G02F2001/133562 ,  G02F2001/133567 ,  G02F2201/50 ,  G02F2201/54 ,  G02F2202/28

Abstract: Provided is a liquid crystal display device including a liquid crystal cell having a liquid crystal layer between two glass substrates, a front-side polarizing plate provided on a front side of the liquid crystal cell, a rear polarizer provided on a rear side of the liquid crystal cell, and a backlight provided on a rear side of the rear polarizer, in which the front-side polarizing plate has a first protective film, a polarizer, and a second protective film in this order from a surface side opposite to the liquid crystal cell, the first protective film in the front-side polarizing plate is a film including a polyester resin or a polycarbonate resin as a main component, an Re of the first protective film is 3000 nm or higher, an equilibrium moisture content of the second protective film at 25° C. and a relative humidity of 60% is in a range of 1% to 3%, and in the second protective film, a contractile force in a direction orthogonal to an absorption axis of the polarizer is 1.3 times or higher a contractile force in a direction parallel to the absorption axis of the polarizer which is capable of suppressing luminance unevenness at the four corners of the panel when a backlight is turned on after the liquid crystal display device has been stored in a hot and humid environment.

Abstract translation: 本发明提供一种液晶显示装置，其具有液晶单元，该液晶单元在两个玻璃基板之间具有液晶层，设置在液晶单元前侧的前侧偏振板，设置在液晶单元的后侧的后偏振片 晶体单元和设置在后偏振器的后侧的背光源，其中正面偏振片具有第一保护膜，偏振片和第二保护膜，从液晶相反的表面侧开始 电池中，前侧偏光板中的第一保护膜是以聚酯树脂或聚碳酸酯树脂为主要成分的膜，第一保护膜的Re为3000nm以上，第二保护膜的平衡含水量 25℃，相对湿度60％的膜在1％〜3％的范围内，在第2保护膜中，与偏振片的吸收轴正交的方向的收缩力为1.3倍 或更高的平行于偏振片的吸收轴的方向上的收缩力，当液晶显示装置已经被储存在热和潮湿中时，当背光被打开时，该收缩力能够抑制面板的四个角的亮度不均匀 环境。